/* モデルビューアページ共通スタイル */

body {
    margin: 0;
    font-family: "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Noto Sans JP", system-ui, sans-serif;
}

/* 固定オーバーレイナビ */
.site-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    pointer-events: none;
}
.site-nav a {
    pointer-events: auto;
    text-decoration: none;
}
.brand {
    color: #222222;
    font-size: 0.95rem;
    font-weight: 700;
}
.nav-link {
    padding: 8px 16px;
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(6px);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
    color: #2A9D8F;
    font-size: 0.85rem;
    font-weight: 700;
}
.nav-link:hover { background: #FFFFFF; }

/* ホットスポット注釈 */
.hotspot {
    display: block;
    width: 18px;
    height: 18px;
    padding: 0;
    border: 2px solid #FFFFFF;
    border-radius: 50%;
    background: #2A9D8F;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.3);
    cursor: pointer;
    transition: opacity 0.3s;
}
.hotspot:not([data-visible]) {
    opacity: 0.25;
    pointer-events: none;
}
.hotspot .annotation {
    position: absolute;
    bottom: calc(100% + 10px);
    left: 50%;
    /* --shift-x は hotspot-fit.js が画面内に収まるよう設定する */
    transform: translateX(calc(-50% + var(--shift-x, 0px)));
    width: max-content;
    max-width: min(220px, calc(100vw - 32px));
    overflow-wrap: anywhere;
    padding: 8px 12px;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    color: #222222;
    font-size: 0.8rem;
    text-align: left;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s;
}
.hotspot .annotation.annotation--below {
    bottom: auto;
    top: calc(100% + 10px);
}
.hotspot:hover .annotation,
.hotspot:focus .annotation {
    opacity: 1;
    visibility: visible;
}

/* AR起動ボタン（AR対応端末のみ表示される） */
.ar-button {
    position: absolute;
    bottom: calc(env(safe-area-inset-bottom, 0px) + 24px);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 8px;
    min-height: 52px;
    padding: 14px 28px;
    border: none;
    border-radius: 999px;
    background: #2A9D8F;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
    color: #FFFFFF;
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
}
.ar-button:active {
    transform: translateX(-50%) scale(0.96);
}
.ar-button svg {
    width: 22px;
    height: 22px;
    fill: none;
    stroke: currentColor;
    stroke-width: 1.6;
    stroke-linecap: round;
    stroke-linejoin: round;
}

/* AR用QRコード（AR非対応環境=PCでのみ表示される） */
.qr-button {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
    padding: 12px 24px;
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(6px);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
    color: #2A9D8F;
    font-size: 0.9rem;
    font-weight: 700;
    cursor: pointer;
}
.qr-button:hover { background: #FFFFFF; }
.qr-overlay {
    position: fixed;
    inset: 0;
    z-index: 20;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    background: rgba(0, 0, 0, 0.5);
}
.qr-overlay[hidden] { display: none; }
.qr-card {
    max-width: 320px;
    padding: 24px;
    border-radius: 16px;
    background: #FFFFFF;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.25);
    text-align: center;
}
.qr-title {
    margin: 0 0 16px;
    font-size: 1.05rem;
    font-weight: 700;
}
.qr-code svg {
    display: block;
    width: 200px;
    height: 200px;
    margin: 0 auto;
}
.qr-note {
    margin: 16px 0;
    color: #666666;
    font-size: 0.8rem;
    text-align: left;
}
.qr-close {
    padding: 10px 32px;
    border: none;
    border-radius: 999px;
    background: #2A9D8F;
    color: #FFFFFF;
    font-size: 0.9rem;
    font-weight: 700;
    cursor: pointer;
}

/* ビューア操作コントロール（ズーム±・視点移動・リセット） */
.viewer-controls {
    position: fixed;
    right: 12px;
    bottom: calc(env(safe-area-inset-bottom, 0px) + 96px);
    z-index: 10;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}
.vc-zoom {
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.vc-pad {
    display: grid;
    grid-template-areas:
        ". up ."
        "left reset right"
        ". down .";
    gap: 6px;
}
.vc-pad [data-action="up"] { grid-area: up; }
.vc-pad [data-action="left"] { grid-area: left; }
.vc-pad [data-action="reset"] { grid-area: reset; }
.vc-pad [data-action="right"] { grid-area: right; }
.vc-pad [data-action="down"] { grid-area: down; }
.vc-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    padding: 0;
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(6px);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
    color: #2A9D8F;
    font-size: 1.05rem;
    font-weight: 700;
    line-height: 1;
    cursor: pointer;
}
.vc-btn:hover { background: #FFFFFF; }
.vc-btn:active { transform: scale(0.92); }